target/openrisc/disas.c

   1 /*
   2  * OpenRISC disassembler
   3  *
   4  * Copyright (c) 2018 Richard Henderson <rth@twiddle.net>
   5  *
   6  * This program is free software: you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation, either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include "qemu/osdep.h"
  21 #include "qemu-common.h"
  22 #include "disas/bfd.h"
  23 #include "qemu/bitops.h"
  24 #include "cpu.h"
  25
  26 typedef disassemble_info DisasContext;
  27
  28 /* Include the auto-generated decoder.  */
  29 #include "decode.inc.c"
  30
  31 #define output(mnemonic, format, ...) \
  32     (info->fprintf_func(info->stream, "%-9s " format, \
  33                         mnemonic, ##__VA_ARGS__))
  34
  35 int print_insn_or1k(bfd_vma addr, disassemble_info *info)
  36 {
  37     bfd_byte buffer[4];
  38     uint32_t insn;
  39     int status;
  40
  41     status = info->read_memory_func(addr, buffer, 4, info);
  42     if (status != 0) {
  43         info->memory_error_func(status, addr, info);
  44         return -1;
  45     }
  46     insn = bfd_getb32(buffer);
  47
  48     if (!decode(info, insn)) {
  49         output(".long", "%#08x", insn);
  50     }
  51     return 4;
  52 }
  53
  54 #define INSN(opcode, format, ...)                                       \
  55 static bool trans_l_##opcode(disassemble_info *info, arg_l_##opcode *a) \
  56 {                                                                       \
  57     output("l." #opcode, format, ##__VA_ARGS__);                        \
  58     return true;                                                        \
  59 }
  60
  61 INSN(add,    "r%d, r%d, r%d", a->d, a->a, a->b)
  62 INSN(addc,   "r%d, r%d, r%d", a->d, a->a, a->b)
  63 INSN(sub,    "r%d, r%d, r%d", a->d, a->a, a->b)
  64 INSN(and,    "r%d, r%d, r%d", a->d, a->a, a->b)
  65 INSN(or,     "r%d, r%d, r%d", a->d, a->a, a->b)
  66 INSN(xor,    "r%d, r%d, r%d", a->d, a->a, a->b)
  67 INSN(sll,    "r%d, r%d, r%d", a->d, a->a, a->b)
  68 INSN(srl,    "r%d, r%d, r%d", a->d, a->a, a->b)
  69 INSN(sra,    "r%d, r%d, r%d", a->d, a->a, a->b)
  70 INSN(ror,    "r%d, r%d, r%d", a->d, a->a, a->b)
  71 INSN(exths,  "r%d, r%d", a->d, a->a)
  72 INSN(extbs,  "r%d, r%d", a->d, a->a)
  73 INSN(exthz,  "r%d, r%d", a->d, a->a)
  74 INSN(extbz,  "r%d, r%d", a->d, a->a)
  75 INSN(cmov,   "r%d, r%d, r%d", a->d, a->a, a->b)
  76 INSN(ff1,    "r%d, r%d", a->d, a->a)
  77 INSN(fl1,    "r%d, r%d", a->d, a->a)
  78 INSN(mul,    "r%d, r%d, r%d", a->d, a->a, a->b)
  79 INSN(mulu,   "r%d, r%d, r%d", a->d, a->a, a->b)
  80 INSN(div,    "r%d, r%d, r%d", a->d, a->a, a->b)
  81 INSN(divu,   "r%d, r%d, r%d", a->d, a->a, a->b)
  82 INSN(muld,   "r%d, r%d", a->a, a->b)
  83 INSN(muldu,  "r%d, r%d", a->a, a->b)
  84 INSN(j,      "%d", a->n)
  85 INSN(jal,    "%d", a->n)
  86 INSN(bf,     "%d", a->n)
  87 INSN(bnf,    "%d", a->n)
  88 INSN(jr,     "r%d", a->b)
  89 INSN(jalr,   "r%d", a->b)
  90 INSN(lwa,    "r%d, %d(r%d)", a->d, a->i, a->a)
  91 INSN(lwz,    "r%d, %d(r%d)", a->d, a->i, a->a)
  92 INSN(lws,    "r%d, %d(r%d)", a->d, a->i, a->a)
  93 INSN(lbz,    "r%d, %d(r%d)", a->d, a->i, a->a)
  94 INSN(lbs,    "r%d, %d(r%d)", a->d, a->i, a->a)
  95 INSN(lhz,    "r%d, %d(r%d)", a->d, a->i, a->a)
  96 INSN(lhs,    "r%d, %d(r%d)", a->d, a->i, a->a)
  97 INSN(swa,    "%d(r%d), r%d", a->i, a->a, a->b)
  98 INSN(sw,     "%d(r%d), r%d", a->i, a->a, a->b)
  99 INSN(sb,     "%d(r%d), r%d", a->i, a->a, a->b)
 100 INSN(sh,     "%d(r%d), r%d", a->i, a->a, a->b)
 101 INSN(nop,    "")
 102 INSN(addi,   "r%d, r%d, %d", a->d, a->a, a->i)
 103 INSN(addic,  "r%d, r%d, %d", a->d, a->a, a->i)
 104 INSN(muli,   "r%d, r%d, %d", a->d, a->a, a->i)
 105 INSN(maci,   "r%d, %d", a->a, a->i)
 106 INSN(andi,   "r%d, r%d, %d", a->d, a->a, a->k)
 107 INSN(ori,    "r%d, r%d, %d", a->d, a->a, a->k)
 108 INSN(xori,   "r%d, r%d, %d", a->d, a->a, a->i)
 109 INSN(mfspr,  "r%d, r%d, %d", a->d, a->a, a->k)
 110 INSN(mtspr,  "r%d, r%d, %d", a->a, a->b, a->k)
 111 INSN(mac,    "r%d, r%d", a->a, a->b)
 112 INSN(msb,    "r%d, r%d", a->a, a->b)
 113 INSN(macu,   "r%d, r%d", a->a, a->b)
 114 INSN(msbu,   "r%d, r%d", a->a, a->b)
 115 INSN(slli,   "r%d, r%d, %d", a->d, a->a, a->l)
 116 INSN(srli,   "r%d, r%d, %d", a->d, a->a, a->l)
 117 INSN(srai,   "r%d, r%d, %d", a->d, a->a, a->l)
 118 INSN(rori,   "r%d, r%d, %d", a->d, a->a, a->l)
 119 INSN(movhi,  "r%d, %d", a->d, a->k)
 120 INSN(macrc,  "r%d", a->d)
 121 INSN(sfeq,   "r%d, r%d", a->a, a->b)
 122 INSN(sfne,   "r%d, r%d", a->a, a->b)
 123 INSN(sfgtu,  "r%d, r%d", a->a, a->b)
 124 INSN(sfgeu,  "r%d, r%d", a->a, a->b)
 125 INSN(sfltu,  "r%d, r%d", a->a, a->b)
 126 INSN(sfleu,  "r%d, r%d", a->a, a->b)
 127 INSN(sfgts,  "r%d, r%d", a->a, a->b)
 128 INSN(sfges,  "r%d, r%d", a->a, a->b)
 129 INSN(sflts,  "r%d, r%d", a->a, a->b)
 130 INSN(sfles,  "r%d, r%d", a->a, a->b)
 131 INSN(sfeqi,  "r%d, %d", a->a, a->i)
 132 INSN(sfnei,  "r%d, %d", a->a, a->i)
 133 INSN(sfgtui, "r%d, %d", a->a, a->i)
 134 INSN(sfgeui, "r%d, %d", a->a, a->i)
 135 INSN(sfltui, "r%d, %d", a->a, a->i)
 136 INSN(sfleui, "r%d, %d", a->a, a->i)
 137 INSN(sfgtsi, "r%d, %d", a->a, a->i)
 138 INSN(sfgesi, "r%d, %d", a->a, a->i)
 139 INSN(sfltsi, "r%d, %d", a->a, a->i)
 140 INSN(sflesi, "r%d, %d", a->a, a->i)
 141 INSN(sys,    "%d", a->k)
 142 INSN(trap,   "%d", a->k)
 143 INSN(msync,  "")
 144 INSN(psync,  "")
 145 INSN(csync,  "")
 146 INSN(rfe,    "")
 147
 148 #define FP_INSN(opcode, suffix, format, ...)                            \
 149 static bool trans_lf_##opcode##_##suffix(disassemble_info *info,        \
 150                                          arg_lf_##opcode##_##suffix *a) \
 151 {                                                                       \
 152     output("lf." #opcode "." #suffix, format, ##__VA_ARGS__);           \
 153     return true;                                                        \
 154 }
 155
 156 FP_INSN(add, s,  "r%d, r%d, r%d", a->d, a->a, a->b)
 157 FP_INSN(sub, s,  "r%d, r%d, r%d", a->d, a->a, a->b)
 158 FP_INSN(mul, s,  "r%d, r%d, r%d", a->d, a->a, a->b)
 159 FP_INSN(div, s,  "r%d, r%d, r%d", a->d, a->a, a->b)
 160 FP_INSN(rem, s,  "r%d, r%d, r%d", a->d, a->a, a->b)
 161 FP_INSN(itof, s, "r%d, r%d", a->d, a->a)
 162 FP_INSN(ftoi, s, "r%d, r%d", a->d, a->a)
 163 FP_INSN(madd, s, "r%d, r%d, r%d", a->d, a->a, a->b)
 164 FP_INSN(sfeq, s, "r%d, r%d", a->a, a->b)
 165 FP_INSN(sfne, s, "r%d, r%d", a->a, a->b)
 166 FP_INSN(sfgt, s, "r%d, r%d", a->a, a->b)
 167 FP_INSN(sfge, s, "r%d, r%d", a->a, a->b)
 168 FP_INSN(sflt, s, "r%d, r%d", a->a, a->b)
 169 FP_INSN(sfle, s, "r%d, r%d", a->a, a->b)